Hi guys,
I am experimenting with a procedural stone wall. I know it's not quite there yet. Any advice from your side?
I have't attended to the ground, yet, too. So any ideas what would look good there?
Thanks,
Frank
a procedural wall... ? ;D
it rings a bell !
This could be made of large coral blocks. Didn't you come up with the node network which made squares? But, the easiest way for the wall is to map an image to it.
I think the ground could be a path outside the wall, with a short grass edge along the wall. Various small brush and taller grasses could be placed between the path and the wall also.
Quote from: njeneb on July 06, 2009, 03:38:05 PM
This could be made of large coral blocks. Didn't you come up with the node network which made squares? But, the easiest way for the wall is to map an image to it.
I think the ground could be a path outside the wall, with a short grass edge along the wall. Various small brush and taller grasses could be placed between the path and the wall also.
the squares.... yes, that cold be a nice idea :)
Frank
They could also have slightly different lateral displacements, randomly. This would emphasize (?) the block effect.
Looking good. I would try an image map on the white stones. An image texture that would offer more earth tones.
I would try to have a little more of a horizontal feel to the rocks. It also looks like you're in the awkward region between having gravelly mortar holding together big rocks and a whole pile of gravel held together by cement; the distribution just looks a little awkward to me.
http://dynamicorange.com/uploads/wallpaper/DryStoneWall_1600x1200.jpg
http://www.flickr.com/photos/rhinman/2683382039/
http://gallery.hd.org/_exhibits/natural-science/stone-wall-red-brown-and-mortar-in-Haddington-Scotland-DHD.jpg
Hi o_b, your reference photos are not like what I was trying to get to.
See this: http://www.travelblog.org/Photos/Popped/2009545
or this: http://farm4.static.flickr.com/3520/3296590818_ce1689a794.jpg
Your images are great, too, but I don't think they can be done procedurally - at least not by me ;)
Cheers,
Frank
Ah, I see. Still, I think while looking at those photos that you still need a more constrained size for the larger rocks. I definitely think it's possible, though :).
absolutely, yes. I just have thrown a series of fake stones at the wall in this quick WIP. Now I need to optimze the look of the thing :)
I used a mix of Voronoi Difference Scaler and Voronoi Cellular Scaler to achieve a similar effect to your reference pics in my NWDA entry, which is in a state of flux while I sort out my planting, with real life constraints limiting the time I have to work on it. Should be ready in time if I can get the current job out the door, and will be happy to answer questions about it.
@Hetzen: yes, looking forward to that
@all: I have tried the grid thing, but it makes the wall look even more CG, so I'll give up on this grid idea, at least for the moment.
I will rather optimze the stones and see how that ends up looking.
Frank
an update
The walls works! I am troubled by the sand. Like snow, it should pile up slightly against the wall. Also, vegetation tends to trap sand, making small 'hills'. I think the bench is fine. The wind would scour the sand from beneath it.
for such effects you describe, you could render a view from top so that you know where the objects are. Then paint a displacement image with help of that reference and mix it into the terrain/shader network
another update. I have worked on the wall, making it less straigt and perfect. Followed Walli's suggestion to let the sand pile up near the wall and at the tree and under the bench, added a pathway to the bench or white, flat pebbles.
Added another bush species. Resized the bench, making it a little bit smaller. Added displacement to the palm bark.
And probably I have made the sand ripples too big... hmm.
Thanks,
Frank
Agree that the sand ripples now look a bit exaggerated. But the wall is coming along very nicely.
Quickly re-rendered with smaller sand features, but still not exactly there....
There are flecks of orange in the mortar of the wall. Maybe that color would work for the sand,or one component of the sand.
yeah, these orange, brownish things - have no idea where they have come from, really. But I thought they look great, so I didn't investigate what caused them to appear. Most like one of the fake stone colors...
This is looking very, very good Frank. It would be interesting to see how this looks with a lower sun setting.
This is a cool idea.
Maybe if you made a surface that has smaller grains to look more like cement or whatever is binding the larger stones.
Also, I think that these textures, if made flat, could be cool textures for say marble. Especially in the first render.